Honda Accord: DTC Troubleshooting - Immobilizer System - Body Electrical - Honda Accord MK8 2008-2012 Service ManualHonda Accord: DTC Troubleshooting

DTC U0155:

Immobilizer-keyless Control Unit Lost Communication With Gauge Control Module

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U0155 Indicated? YES

-Do the gauge control module input test, and do all power, ground, and communication input tests (see page 22-347). If the tests prove OK, replace the gauge control module (see page 22-351 ) . NO

-lntermittent failure, the system is OK at this time.

Check for loose or poor connections at the gauge control module and the related u n i t s .

DTC U0199:

Immobilizer-keyless Control Unit Lost Communication With Door Multiplex Control Unit

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U0199 indicated? YES

-Do the door multiplex control unit input test, and do all power, ground, and communication input tests (see page 22-292). If the tests prove OK, replace the power window master switch, 4-door (see page 22-305), 2-door (see page 22-306).

NO

-lntermittent failure, the system is OK at this time.

Check for loose or poor connections at the door multiplex control unit and the related u n i t s .

DTC U1282: i

mmobilizer-keyless Control Unit Lost Communication With Driver's MICU

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

is DTC U1282 indicated? YES

-Do the driver's MICU input test, and do all power, ground, and communication input tests (see page z2-i51). if the tests prove OK, replace the driver's under-dash fuse/relay box, USA models (see page 22-86), Canada models (see page 22-87).

NO-

lntermittent failure, the system is OK at this time.

Check for loose or poor connections at driver's under-dash fuse/relay box connector P (20P) and the related units.

    Circuit Diagram
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    Symptom Troubleshooting Information
    General Check Before Troubleshooting Before troubleshooting the immobilizer system, check the following general items and solve any if applicable: • The battery is low; charge the battery ful ...

    See also:

    Symptom Troubleshooting Index
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    Preparing to Drive
    You should do the following checks and adjustments before you drive your vehicle. 1. Make sure all windows, mirrors, and outside lights are clean and unobstructed. Remove frost, snow, or ic ...

    Driver's Power Window Motor Test
    Motor Test 1. Remove the power window master switch. • 4-door (see page 22-305) • 2-door (see page 22-306) 2. Test the motor in each direction by connecting battery power and ground t ...